Implantation of 125 I seeds for recurrence cervical node of head and neck tumor after external beam radiotherapy

Abstract

Objective To summarize the efficacy and the feasibility of 125I seed implantation for recurrence cervical lymph node of head and neck tumor after radiotherapy or radiotherapy plus neck dissection. Methods Thirty-six patients with the recurrence cervical lymphnode of head and neck tumor after radiotherapy （17 patients） or radiotherapy plus neck dissection （19 patients） were treated with ^125I seed implantation guided by ultrasound or CT under local anesthesia. The median number of seeds was 27 （ range from 3 to 78 ）. Postoperative quality evaluation were routinely obtained for all patients. The actuarial D90 ranged from 90 - 160 Gy （median,130 Gy）. Results The follow-up rate was 100%. The number of the patients who were followed up over 1-and 2-year were 11 and 3. The overall response rate was 81%. The 1-and 2-year over local control rates, over survival rates were 69% and 35% , 50% and 22% , respectively. The 1-and 2-year local control rates in patients with recurrence node after radiotherapy plus neck dissection were 72% and 54% , while those were 67% and 50% in patients with recurrence node after radiotherapy, respectively （X^2 =00,P = 0. 965）. The 1-and 2-year survival rates in two groups were 48%, 13%, and 51%, 39%, respectively （X^2 =0. 17, P= 0. 676）. Conclusions ^125I seed implantation is a safe, minimal iuvasive with low morbidity and high efficacy salvage treatment method for cervical lymph node recurrence of head and neck tumor after radiotheraov with or without neck dissection. Key words: Neoplasms recurrence, cervical lymptr/radiotherapy; Radiotherapy, ^125I seed implantation ; Treatment outcome